PCM-C418/Configuration
v1.0
www.winsystems.com
Page 13
0060h
Keyboard data port
0061h
Port B + NMI control port
0062h-0063h
8051 download 4K address counter
0064h
Keyboard status port
0065h
Watchdog0 reload counter (Vortex internal WD)
0066h
8051 download 8-bit data port
0067h
Watchdog1 reload counter (Vortex internal WD)
0068h-006Dh
Watchdog1 control register (Vortex internal WD)
006Eh-006Fh
Free
0070h-0071h
CMOS RAM port
0072h-0075h
MTBF counter
0076h-0077h
Free
0078h-007Ch
GPIO port 0,1,2,3,4 default setup
007Dh-007Fh
Free
0080h-008Fh
DMA page register
0090h-0091h
Free
0092h
System control register
0093h-0097h
Free
0098h-009Ch
GPIO direction control
00A0h-00A1h
PIC 8259-2
00A2h-00BFh
Free
00C0h-00DFh
DMA 8237-2
00E0h-00FFh
Free
0100h-0101h
GPCS1 default setting address
0102h-016Fh
Free
0170h-0177h
Reserved IDE1
01E8h-01ECh
Reserved
01EDh
Status LED
01EEh-01EFh
Watchdog timer control (legacy)
01F0h-01EFh
IDE0 (IRQ 14)
1F80h-0219h
Free
0220h-0227h
1 MB SRAM (battery-backed user data space)
0228h-02AFh
Free
02B0h-02DFh
Video controllers (typically reserved, video)
02E0h-02E7h
Free
02E8h-02EFh
COM4 (IRQ11) (default)
02F0h-02F7h
Free
02F8h-02FFh
COM2 (IRQ3) (default)
Table 5:
I/O ports (Continued)
Hex Range
Usage